change accessibility of getBlockAtLocation() to public

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@9728 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/circular/DNADraw.java

@@ -1641,7 +1641,7 @@ public class DNADraw extends ScrollPanel
     calculateTickPosistions();
   }
 
-  private Block getBlockAtLocation(Point loc)
+  public Block getBlockAtLocation(Point loc)
   {
     for(int i=0; i<block.size(); i++)
     {